Question: Calculate the range, the variance, and the standard deviation for the data that Katz et al. collected on SAT performance after reading the passage. 66

Calculate the range, the variance, and the standard deviation for the data that Katz et al. collected on SAT performance after reading the passage.
Calculate the range, the variance, and the standard deviation for

66 75 72 71 55 56 72 93 73 72 72 73 91 66 71 56 59

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